31386780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{1373}}^1$

素因数の和:1515

約数の個数: 72

約数和(自身を含む): 96026112

約数和(自身を除く): 64639332

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 127, 180, 254, 381, 508, 635, 762, 1143, 1270, 1373, 1524, 1905, 2286, 2540, 2746, 3810, 4119, 4572, 5492, 5715, 6865, 7620, 8238, 11430, 12357, 13730, 16476, 20595, 22860, 24714, 27460, 41190, 49428, 61785, 82380, 123570, 174371, 247140, 348742, 523113, 697484, 871855, 1046226, 1569339, 1743710, 2092452, 2615565, 3138678, 3487420, 5231130, 6277356, 7846695, 10462260, 15693390, 31386780]

約数ペア:

[(1, 31386780), (2, 15693390), (3, 10462260), (4, 7846695), (5, 6277356), (6, 5231130), (9, 3487420), (10, 3138678), (12, 2615565), (15, 2092452), (18, 1743710), (20, 1569339), (30, 1046226), (36, 871855), (45, 697484), (60, 523113), (90, 348742), (127, 247140), (180, 174371), (254, 123570), (381, 82380), (508, 61785), (635, 49428), (762, 41190), (1143, 27460), (1270, 24714), (1373, 22860), (1524, 20595), (1905, 16476), (2286, 13730), (2540, 12357), (2746, 11430), (3810, 8238), (4119, 7620), (4572, 6865), (5492, 5715)]